Book Image

Cloud Native Applications with Ballerina

By : Dhanushka Madushan
Book Image

Cloud Native Applications with Ballerina

By: Dhanushka Madushan

Overview of this book

The Ballerina programming language was created by WSO2 for the modern needs of developers where cloud native development techniques have become ubiquitous. Ballerina simplifies how programmers develop and deploy cloud native distributed apps and microservices. Cloud Native Applications with Ballerina will guide you through Ballerina essentials, including variables, types, functions, flow control, security, and more. You'll explore networking as an in-built feature in Ballerina, which makes it a first-class language for distributed computing. With this app development book, you'll learn about different networking protocols as well as different architectural patterns that you can use to implement services on the cloud. As you advance, you'll explore multiple design patterns used in microservice architecture and use serverless in Amazon Web Services (AWS) and Microsoft Azure platforms. You will also get to grips with Docker, Kubernetes, and serverless platforms to simplify maintenance and the deployment process. Later, you'll focus on the Ballerina testing framework along with deployment tools and monitoring tools to build fully automated observable cloud applications. By the end of this book, you will have learned how to apply the Ballerina language for building scalable, resilient, secured, and easy-to-maintain cloud native Ballerina projects and applications.
Table of Contents (15 chapters)
1
Section 1: The Basics
4
Section 2: Building Microservices with Ballerina
8
Section 3: Moving on with Cloud Native

Developing Ballerina applications with AWS Lambda functions

AWS is a leading cloud service provider that hosts web services on spatially distributed data centers all over the world. AWS provides many cloud solutions that you can use to host different types of applications. AWS Lambda is the FaaS solution provided by the AWS platform. You can easily create a Lambda function by using both the CLI tool and the AWS Web Console. The Ballerina language supports the creation of AWS Lambda functions with the support of Ballerina AWS Lambda layers. In this section, you will learn how to set up the AWS CLI tool, how to create a simple Lambda function, and how to improve it to provide a complex solution by using AWS Step Functions and the AWS API Gateway trigger.

Understanding AWS Cloud services

Amazon Web Services (AWS) provide a complete range of tools for implementing cloud-based solutions. Similar to other cloud vendors, AWS also provides cloud computing solutions at affordable rates...